 | John Tyndall - 1871 - 408 pages
...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,680,000,000. All these waves enter the eye in a second. In the...rate is the retina hit by the waves of light. 243. Color, in fact, is to light what pitch is to sound. The pitch of a note depends solely on the number... | |
 | JOHN TYNDALL, L.L.D., F.R.S. - 1871 - 204 pages
...th of an inch. The waves which produce the other colors of the spectrum lie between these extremes. waves of violet light enter the eye. At this prodigious...rate is the retina hit by the waves of light. 243. Color, in fact, is to light wlb&t pitch is to sound. The pitch of a note depends solely on the number... | |
 | John Tyndall - 1871 - 216 pages
...a^00th of an inch. The waves which produce the other colors of the spectrum lie between these extremes. waves of violet light enter the eye. At this prodigious...rate is the retina hit by the waves of light. 243. Color, in fact, is to light what pitch is to sound. The pitch of a note depends solely on the number... | |
 | Heinrich Schellen - 1872 - 740 pages
...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,600,000,000. All these waves enter the eye in a second. In the...699,000,000,000,000 waves of violet light enter the eye." It must be remembered that the new determination of the value of the solar parallax by the observations... | |
 | Heinrich Schellen - 1872 - 744 pages
...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,600,000,000. All these waves enter the eye in a second. In the same interval 699,000,000,000,000 waves of violet liyht enter the eye." It must be remembered that the new determination of the value of the solar parallax... | |
 | John Tyndall - 1874 - 216 pages
...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,680,000,000. All these waves enter the eye in a second. In the...rate is the retina hit by the waves of light. 243. Color, in fact, is to light what pitch is to sound. The pitch of a note depends solely on the number... | |
 | Austin Flint - 1874 - 534 pages
...obtain the number of waves of red light in 192,000 miles ; the product is 474,439,680,000,000. All of these waves enter the eye in a second. In the same...prodigious rate is the retina hit by the waves of light. " Color, in fact, is to light, what pitch is to sound. The pitch of a note depends solely on the number... | |
 | Austin Flint - 1875 - 532 pages
...obtain the number of waves of red light in 192,000 miles ; the product is 474,439,680,000,000. All of these waves enter the eye in a second. In the same...prodigious rate is the retina hit by the waves of light. " Color, in fact, is to light, what pitch is to sound. The pitch of a note depends solely on the number... | |
 | Alexander Wilford Hall - 1880 - 544 pages
...strike the retina every second while we are looking at a violet light! These are his words: — "AH these waves enter the eye in a second. In the same interval 699,000,000,000,000 waves tj violet light enter the eye. At this prodigious rate is the retina hit by the waves of light." —... | |
 | Alexander Wilford Hall - 1880 - 544 pages
...to striki the retina every second while u'e are looking at a violet light! These are his words:— "All these waves enter the eye in a second. In the same interval 699, 000,000,000, two wares fj violet light enter the eye. At this prodigious rat« is the retina hit... | |
| |
All these waves enter the eye in a second. In the same interval 699,000,000,000,000 waves of violet light enter the eye. At this prodigious rate is the retina hit by the waves of light. 
